2016/10/31 by A. M. Sirunyan, CMS Collaboration, A. Tumasyan +98
Physics and Astronomy · #Astrophysics #Cabibbo–Kobayashi–Maskawa matrix #Cross section (physics) #Detector #Discriminator #Gauge (firearms) #High-Energy Particle Collisions Research #Jet (fluid) #Large Hadron Collider #Luminosity #Muon #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Quark #Standard Model (mathematical formulation) #Top quark #hep-ex
paper · pdf · doi:10.1016/j.physletb.2017.07.047
published as Phys. Lett. B 72 (2017) 752 · Replaced with the published version. Small changes made to results from updated integrated luminosity measurement. Added the journal reference and DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-16-003/index.html (CMS Public Pages)
openalex created_date 2016/10/14 · openalex publication_date 2017/07/29 · arxiv created 2017/09/26 · arxiv updated 2017/09/28 · openalex updated_date 2026/08/05
The cross section for the production of single top quarks in the t channel is measured in proton–proton collisions at 13 TeV with the CMS detector at the LHC. The analyzed data correspond to an integrated luminosity of 2.2 fb − 1 . The event selection requires one muon and two jets where one of the jets is identified as originating from a bottom quark. Several kinematic variables are then combined into a multivariate discriminator to distinguish signal from background events. A fit to the distribution of the discriminating variable yields a total cross section of 238 ± 13 (stat) ± 29 (syst) pb and a ratio of top quark and top antiquark production of R t -ch. = 1.81 ± 0.18 (stat) ± 0.15 (syst) . From the total cross section the absolute value of the CKM matrix element V t b is calculated to be 1.05 ± 0.07 (exp) ± 0.02 (theo) . All results are in agreement with the standard model predictions.